map is:exact -package:aeson -package:containers -package:case-insensitive -package:conduit -package:dlist -package:hedgehog -package:invertible -package:basement -package:integration -package:pipes -package:charset package:psqueues
O(n) Modify every value in the queue.
O(n) Modify every value in the queue.
O(n) Modify every value in the queue.